Commit graph

488 commits

Author SHA1 Message Date
Bence Szépkúti
1b2a8836c4 Correct documentation references to Mbed TLS
Use the correct formatting of the product name in the documentation.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 10:37:19 +01:00
Bence Szépkúti
60c863411c Remove references to MBEDTLS_USER_CONFIG_VERSION
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 09:28:48 +01:00
Bence Szépkúti
36da4ccc51 Update changelog and migration guide
This reflect changes to the config version symbols.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 09:28:48 +01:00
Bence Szépkúti
8d9132f43c Fix typo
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 09:28:48 +01:00
Bence Szépkúti
90b79ab342 Add migration guide and changelog
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 09:28:48 +01:00
Bence Szépkúti
dba968f59b Realign Markdown table
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 09:28:47 +01:00
Bence Szépkúti
bb0cfeb2d4 Rename config.h to mbedtls_config.h
This commit was generated using the following script:

# ========================
#!/bin/sh
git ls-files | grep -v '^ChangeLog' | xargs sed -b -E -i '
s/((check|crypto|full|mbedtls|query)_config)\.h/\1\nh/g
s/config\.h/mbedtls_config.h/g
y/\n/./
'
mv include/mbedtls/config.h include/mbedtls/mbedtls_config.h
# ========================

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 09:28:33 +01:00
Gilles Peskine
f00f152444 Add output size parameter to signature functions
The functions mbedtls_pk_sign(), mbedtls_pk_sign_restartable(),
mbedtls_ecdsa_write_signature() and mbedtls_ecdsa_write_signature_restartable()
now take an extra parameter indicating the size of the output buffer for the
signature.

No change to RSA because for RSA, the output size is trivial to calculate.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-25 00:46:22 +02:00
Gilles Peskine
fedd52ca19
Merge pull request #4707 from gilles-peskine-arm/require-matching-hashlen-rsa-implementation
Require matching hashlen in RSA functions: implementation
2021-06-24 10:28:20 +02:00
Gilles Peskine
f06b92d724
Merge pull request #4567 from mstarzyk-mobica/gcm_ad
Enable multiple calls to mbedtls_gcm_update_ad
2021-06-23 19:36:23 +02:00
Gilles Peskine
e9bc857327
Merge pull request #4552 from hanno-arm/mbedtls_3_0_key_export
Implement modified key export API for Mbed TLS 3.0
2021-06-22 18:52:37 +02:00
Gilles Peskine
9dbbc297a3 PK signature function: require exact hash length
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-22 18:39:41 +02:00
Dave Rodgman
5ec5003992 Document the return type change in the migration guide
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2021-06-22 13:49:09 +01:00
Manuel Pégourié-Gonnard
e7885e5441 RSA: Require hashlen to match md_alg when applicable
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-06-22 12:29:27 +02:00
Manuel Pégourié-Gonnard
3e7ddb2bb6
Merge pull request #4604 from gilles-peskine-arm/default-hashes-curves-3.0
Update the default hash and curve selection for X.509 and TLS
2021-06-22 12:08:37 +02:00
Manuel Pégourié-Gonnard
508d3a5824
Merge pull request #4664 from tom-daubney-arm/rm_truncated_HMAC_ext
Remove truncated HMAC extension
2021-06-22 11:53:10 +02:00
Manuel Pégourié-Gonnard
a805d57261
Merge pull request #4588 from TRodziewicz/remove_MD2_MD4_RC4_Blowfish_and_XTEA
Remove MD2, MD4, RC4, Blowfish and XTEA
2021-06-22 09:27:41 +02:00
TRodziewicz
f41dc7cb35 Removal of RC4 certs and fixes to docs and tests
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-21 13:27:29 +02:00
Hanno Becker
7e6c178b6d Make key export callback and context connection-specific
Fixes #2188

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-06-18 18:40:19 +01:00
Hanno Becker
d5c9cc7c90 Add migration guide for modified key export API
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-06-18 18:40:19 +01:00
Manuel Pégourié-Gonnard
9a32d45819
Merge pull request #4517 from hanno-arm/ticket_api_3_0
Implement 3.0-API for SSL session resumption
2021-06-18 18:34:45 +02:00
Manuel Pégourié-Gonnard
ae35830295
Merge pull request #4661 from mpg/make-blinding-mandatory
Make blinding mandatory
2021-06-18 18:32:13 +02:00
Dave Rodgman
8c8166a7f1
Merge pull request #4640 from TRodziewicz/move_part_of_timing_module_out_of_the_library_and_to_test
Move part of timing module out of the library
2021-06-18 16:35:58 +01:00
Thomas Daubney
ac84469dd1 Modifies Migration Guide entry
Commit makes corrections to Migration Guide
entry for this task.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2021-06-18 14:08:56 +01:00
Thomas Daubney
379227cc59 Modifies ChangeLog and Migration Guide
Entries in ChangeLog and Migration guide files
have been merged to cover both the removal of
MBEDTLS_SSL_TRUNCATED_HMAC and
MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2021-06-18 10:46:12 +01:00
Gilles Peskine
39957503c5 Remove secp256k1 from the default X.509 and TLS profiles
For TLS, secp256k1 is deprecated by RFC 8422 §5.1.1. For X.509,
secp256k1 is not deprecated, but it isn't used in practice, especially
in the context of TLS where there isn't much point in having an X.509
certificate which most peers do not support. So remove it from the
default profile. We can add it back later if there is demand.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-17 23:17:52 +02:00
Gilles Peskine
ec78bc47b5 Meld DEFAULT_ALLOW_SHA1_IN_CERTIFICATES removal migration guide
Meld the migration guide for the removal of
MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES into the migration guide for
the strengthening of TLS and X.509 defaults, which is more general. The
information in the SHA-1 section was largely already present in the
strengthening section. It is now less straightforward to figure out how to
enable SHA-1 in certificates, but that's a good thing, since no one should
still be doing this in 2021.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-17 21:46:29 +02:00
Gilles Peskine
6b1f64a150 Wording clarifications
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-17 21:46:29 +02:00
Gilles Peskine
b1940a76ad In TLS, order curves by resource usage, not size
TLS used to prefer larger curves, under the idea that a larger curve has a
higher security strength and is therefore harder to attack. However, brute
force attacks are not a practical concern, so this was not particularly
meaningful. If a curve is considered secure enough to be allowed, then we
might as well use it.

So order curves by resource usage. The exact definition of what this means
is purposefully left open. It may include criteria such as performance and
memory usage. Risk of side channels could be a factor as well, although it
didn't affect the current choice.

The current list happens to exactly correspond to the numbers reported by
one run of the benchmark program for "full handshake/s" on my machine.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-17 21:46:29 +02:00
Gilles Peskine
3758fd6b79 Changelog entry and migration guide for hash and curve profile upgrades
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-17 21:46:14 +02:00
Thomas Daubney
50afb4378f Adds Migration guide
Commit adds a migraiton guide entry that was
missing.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2021-06-17 09:23:41 +01:00
Manuel Pégourié-Gonnard
8707259318 Improve ChangeLog and migration guide entries
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-06-17 09:41:00 +02:00
Manuel Pégourié-Gonnard
e6e51aab55 Add ChangeLog and migration guide entries
Merge part of the RSA entries into this one, as I think it's easier for
users to have all similar changes in one place regardless of whether
they were introduce in the same PR or not.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-06-17 09:38:38 +02:00
Mateusz Starzyk
bd513bb53d Enable multiple calls to mbedtls_gcm_update_ad.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-06-16 14:34:09 +02:00
TRodziewicz
15a7b73708 Documentation rewording
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-16 11:22:53 +02:00
TRodziewicz
8f91c721d3 Code review follow-up corrections
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-16 10:34:45 +02:00
TRodziewicz
7ff652ae53 Addition of ChangeLog and migration guide entry files.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-16 10:34:39 +02:00
Gilles Peskine
17575dcb03
Merge pull request #4629 from TRodziewicz/rename_functions_whose_deprecated_variants_have_been_removd
Rename the _ret() functions
2021-06-15 20:32:07 +02:00
TRodziewicz
9c90226df1 Addition of the migration guide and change log files
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-15 15:49:20 +02:00
Manuel Pégourié-Gonnard
8cad2e22fc
Merge pull request #4595 from gilles-peskine-arm/alt-dummy-headers-3.0
Lighten and test constraints on context types in alternative implementations
2021-06-15 12:12:46 +02:00
TRodziewicz
28a4a963fc Corrections to the docs wording and changes to aux scripts
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-15 00:18:32 +02:00
Gilles Peskine
cadd3d860e Give examples of PLATFORM_XXX_ALT
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-15 00:14:28 +02:00
Gilles Peskine
bf26bef157 Discuss the durability of PSA drivers vs ALT when introducing them
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-15 00:14:28 +02:00
Gilles Peskine
a71db94c66 Document that contexts must be movable
Fix #4451.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-15 00:14:28 +02:00
Gilles Peskine
f35c42bdb9 Document the remaining constraints on ALT context types
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-15 00:14:28 +02:00
Gilles Peskine
6a2fb61896 Rename library/ecp_alt.h to ecp_internal_alt.h
library/ecp_alt.h (declaring individual functions of the ECP module that can
be substituted, included when building the library with
MBEDTLS_ECP_INTERNAL_ALT enabled) clashes with ecp_alt.h (not provided,
declaring types of the ECP module when the whole implementation is
substituted, included when building the library with MBEDTLS_ECP_ALT enabled).
Depending on the search path during build, this can make MBEDTLS_ECP_ALT
unusable.

Rename library/ecp_alt.h to follow the naming convention of other alt headers:
MBEDTLS_XXX_ALT corresponds to xxx_alt.h.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-15 00:10:37 +02:00
Gilles Peskine
b9ccb25f33 Starter-class documentation of alternative implementations
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-06-15 00:10:37 +02:00
TRodziewicz
3946f79cab Correction according to code review (function and param. names change
and docs rewording)

Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-14 13:46:21 +02:00
TRodziewicz
8b223b6509 Addition of the migration guide entry file.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-14 11:56:33 +02:00
TRodziewicz
1fcd72e93c change log and migr. guide fixes and _DEPRECATED_REMOVED removed
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-14 11:16:06 +02:00
Gilles Peskine
02b76b7d18
Merge pull request #4619 from TRodziewicz/remove_MBEDTLS_X509_CHECK_x_KEY_USAGE_options
Remove MBEDTLS_X509_CHECK_*_KEY_USAGE options but enable the code
2021-06-10 17:43:36 +02:00
TRodziewicz
2a5e5a2759 Correction to the migration guide entry wording
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-09 16:54:20 +02:00
TRodziewicz
0ea2576502 Correction to the migr. guide wording and removal of not needed option
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-09 13:31:42 +02:00
TRodziewicz
b8367380b1 Addition of the migration guide
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-09 13:31:42 +02:00
TRodziewicz
1e66642d68 Addition of change log and migration guide files.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-09 11:25:28 +02:00
Ronald Cron
f8abfa8b1b Improve migration guide
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-06-09 10:54:14 +02:00
Ronald Cron
6fe1bc3f24 Add change log and migration guide
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-06-08 14:11:19 +02:00
Manuel Pégourié-Gonnard
16fdab79a5
Merge pull request #4382 from hanno-arm/max_record_payload_api
Remove MFL query API and add API for maximum plaintext size of incoming records
2021-06-08 11:07:27 +02:00
Hanno Becker
61f292ea0a Fix migration guide for now-removed deprecated functions
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-06-08 07:50:55 +01:00
TRodziewicz
0730cd5d9e Merge branch 'development' into Remove__CHECK_PARAMS_option 2021-06-07 15:41:49 +02:00
TRodziewicz
442fdc22ea Remove MBEDTLS_X509_CHECK_*_KEY_USAGE options but enable the code
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-06-07 13:52:23 +02:00
Manuel Pégourié-Gonnard
13a9776676 Editorial improvements
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-06-07 12:00:04 +02:00
Manuel Pégourié-Gonnard
3b5a7c198c Update ChangeLog and migration guide
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-06-07 11:13:34 +02:00
Manuel Pégourié-Gonnard
84191eab06
Merge pull request #4315 from Kxuan/feat-pre-compute-tls
Static initialize comb table
2021-06-03 11:41:54 +02:00
kXuan
782c2b9f36
fix comment, ChangeLog & migration-guide for MBEDTLS_ECP_FIXED_POINT_OPTIM
Signed-off-by: kXuan <kxuanobj@gmail.com>
2021-06-03 15:47:40 +08:00
Manuel Pégourié-Gonnard
1b1327cc0d
Merge pull request #4581 from TRodziewicz/remove_supp_for_extensions_in_pre-v3_X.509_certs
Remove MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 option
2021-06-02 13:48:03 +02:00
Manuel Pégourié-Gonnard
df77624ab5
Merge pull request #4490 from TRodziewicz/Combine__SSL_<CID-TLS1_3>_PADDING_GRANULARITY_options
Combine _SSL_<CID-TLS1_3>_PADDING_GRANULARITY options
2021-06-02 13:47:48 +02:00
Manuel Pégourié-Gonnard
1b3b27cbb0
Merge pull request #4587 from TRodziewicz/remove_3DES_ciphersuites
Remove 3DES ciphersuites
2021-06-02 11:01:42 +02:00
Ronald Cron
3dafa9bda8
Merge pull request #4555 from ronald-cron-arm/m-ccm-api
Define CCM multi-part API
2021-06-02 09:56:43 +02:00
Gilles Peskine
fe3069b7f1
Merge pull request #4585 from mpg/cipher-aead-delayed
Clarify multi-part AEAD calling sequence in Cipher module
2021-06-01 12:04:19 +02:00
Manuel Pégourié-Gonnard
c01b87b820 Fix some typos
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-06-01 09:40:53 +02:00
Ronald Cron
f668bd18df Add migration guide for developers of CCM alternative implementation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-06-01 09:07:46 +02:00
kXuan
22fc906d57
Add ChangeLog and migration guide for MBEDTLS_ECP_FIXED_POINT_OPTIM
Signed-off-by: kXuan <kxuanobj@gmail.com>
2021-06-01 14:01:59 +08:00
TRodziewicz
231649a020 Changing the migration guide entry wording.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-31 13:12:16 +02:00
TRodziewicz
4e57f4cdfd Adding removed defines to check_config.h and fixing the migration guide entry.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-31 12:58:25 +02:00
Manuel Pégourié-Gonnard
6d84e917bb
Merge pull request #4568 from creiter32/to_upstream/csr_critical_extensions
Expose flag for critical extensions
2021-05-31 12:46:59 +02:00
Manuel Pégourié-Gonnard
ee57ebe553 Add ChangeLog and migration guide entries
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-31 12:25:01 +02:00
TRodziewicz
3670e387dc Remove 3DES ciphersuites
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-31 12:11:53 +02:00
Ronald Cron
ea62d2f391
Merge pull request #4369 from hanno-arm/relax_psk_config
Implement relaxed semantics for static PSK configuration in Mbed TLS 3.0
2021-05-31 10:03:56 +02:00
TRodziewicz
dee975af7d Remove MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 option
Remove define

Add ChangeLog file and migration guide entry

Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-28 15:27:01 +02:00
Hanno Becker
2bec09c113 Fix typo in migration guide
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-28 09:54:31 +01:00
Hanno Becker
196739b478 Change wording in documentation of PSK configuration
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-28 05:33:14 +01:00
TRodziewicz
062f353804 Changes after code review
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-27 17:34:14 +02:00
TRodziewicz
caf2ae04b8 ChangeLog and migration guide added.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-27 17:33:51 +02:00
Christoph Reiter
95273f4b07 Expose flag for critical extensions
Enables creating X.509 CSRs with critical extensions.

Signed-off-by: Christoph Reiter <christoph.reiter@infineon.com>
2021-05-27 14:27:43 +02:00
TRodziewicz
0a02fbb783 Addition of the migration guide entry.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-26 15:57:50 +02:00
TRodziewicz
a86c312d92 Addition of the migration guide entry.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-26 15:29:36 +02:00
Gilles Peskine
b7abba28e3
Merge pull request #4515 from tom-daubney-arm/remove_rsa_mode_params_2
Remove rsa mode params part 2
2021-05-25 20:36:33 +02:00
Thomas Daubney
6f966112c7 Corrections to ChangeLog and Migration guide
Corrections to address wording of ChangeLog
and Migration guide.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2021-05-25 15:00:19 +01:00
Thomas Daubney
3ca92b182c Re-wording of Migration guide entry
Commit re-words the migration guide
entry as requested in review.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2021-05-24 14:11:39 +01:00
TRodziewicz
4ca18aae38 Corrections after the code review
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-24 13:38:00 +02:00
TRodziewicz
d807060e0a Addition of migration guide and corrections to the ChangeLog file
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-24 12:50:51 +02:00
Thomas Daubney
2fbbe1d2fe Corrections to ChangeLog and Migration guide
This commit fixes typos and re-words
the migration guide. It also adds
the issue number to the ChangeLog.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2021-05-24 10:53:57 +01:00
Hanno Becker
3bbf4c058f Fix typo in migration guide for ticket API change
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-23 06:20:23 +01:00
Hanno Becker
b2efc4d464 Add migration guide
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-23 06:03:55 +01:00
Thomas Daubney
62b0d1dbc8 Adds ChangeLog and Migration guide entry
Commit adds relevant entry to the
ChangeLog and to the
Migration guide.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
2021-05-21 17:05:12 +01:00
Janos Follath
7fc487c4d6
Merge pull request #4347 from hanno-arm/ssl_session_cache_3_0
Add session ID as an explicit parameter to SSL session cache API
2021-05-21 09:28:55 +01:00
Ronald Cron
ca72287583
Merge pull request #4304 from mstarzyk-mobica/convert_NO_SHA384_to_positive
Modify config option for SHA384.
2021-05-21 08:04:33 +02:00
Ronald Cron
49fef37ebf
Merge pull request #4342 from gilles-peskine-arm/gcm-update-any-length
GCM: allow arbitrary lengths for update
Only the ABI-API-checking job failed and this is expected thus good to go.
2021-05-20 15:08:55 +02:00
Mateusz Starzyk
17011a3185 Merge branch 'development' into convert_NO_SHA384_to_positive
Conflicts:
	library/version_features.c
	programs/test/query_config.c

Files were removed in development branch and modified by current branch.
Conflicts fixes by removing them.
2021-05-20 14:18:12 +02:00
Mateusz Starzyk
3489cc1433 Improve migration guide for SHA384 option
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-05-20 13:52:48 +02:00
Gilles Peskine
15c7b40ab7 Reorder the text to say who is affected first
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-20 12:11:19 +02:00
Gilles Peskine
7f312c811b Add migration guides for GCM
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-20 11:51:46 +02:00
Manuel Pégourié-Gonnard
729fa5be88
Merge pull request #4450 from mstarzyk-mobica/remove_null_entropy
Remove MBEDTLS_TEST_NULL_ENTROPY config option.
2021-05-20 09:19:55 +02:00
Mateusz Starzyk
2396b21f80 Provide more in-depth migration guide after removal of null entropy.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-05-19 16:35:51 +02:00
Manuel Pégourié-Gonnard
2213871654
Merge pull request #4489 from TRodziewicz/Remove__SSL_RECORD_CHECKING
Remove  ssl record checking
2021-05-19 13:57:51 +02:00
Mateusz Starzyk
44085de5f7 Add migration guide for SHA384 and SHA224 options.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-05-19 13:22:53 +02:00
Ronald Cron
0e3ec27598
Merge pull request #4506 from gilles-peskine-arm/array-parameters-to-pointers-sha512
Change sha256 and sha512 output type from an array to a pointer
2021-05-19 12:37:17 +02:00
Mateusz Starzyk
ef80a9c5e0 Add migration guide for removed null entropy config option
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-05-18 16:25:01 +02:00
Hanno Becker
9039303cf5 Add migration guide
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-18 05:27:18 +01:00
Ronald Cron
fdcde47f36
Merge pull request #4458 from davidhorstmann-arm/remove-max-content-len
Remove MBEDTLS_SSL_MAX_CONTENT_LEN option
2021-05-17 16:36:04 +02:00
TRodziewicz
e13a23b439 New line added at the end of the migration guide entry
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-17 11:16:52 +02:00
Manuel Pégourié-Gonnard
5605911fd3
Merge pull request #4447 from hanno-arm/ssl_config_cleanup
Avoid and remove some SSL error codes for Mbed TLS 3.0
2021-05-17 10:55:17 +02:00
TRodziewicz
57d7ab72fb Correction to migration guide entry wording
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-17 10:43:41 +02:00
Hanno Becker
67e49a627d Add migration guide
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-14 20:13:54 +01:00
Hanno Becker
8e184e2deb Add migration guide
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-14 17:10:27 +01:00
Hanno Becker
699d4d7df7 Add migration guide for new SSL ticket API
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-14 16:36:44 +01:00
Hanno Becker
548b136e8f Add migration guide for removal of mbedtls_ssl_get_session_pointer()
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-05-14 16:36:44 +01:00
TRodziewicz
1cf33bf94d Corrections o the migration guide
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-14 14:35:26 +02:00
TRodziewicz
95f8f22c27 Migration guide added and ChangeLog clarified
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-14 14:07:51 +02:00
Gilles Peskine
d7b3d92476 Change sha256 output type from an array to a pointer
The output parameter of mbedtls_sha256_finish_ret and mbedtls_sha256_ret
now has a pointer type rather than array type. This removes spurious
warnings in some compilers when outputting a SHA-224 hash into a
28-byte buffer.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-13 00:46:29 +02:00
Gilles Peskine
e02e02f203 Change sha512 output type from an array to a pointer
The output parameter of mbedtls_sha512_finish_ret and mbedtls_sha512_ret
now has a pointer type rather than array type. This removes spurious
warnings in some compilers when outputting a SHA-384 hash into a
48-byte buffer.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-05-13 00:32:45 +02:00
Gilles Peskine
5d1f747d85
Merge pull request #4377 from mpg/psa-pbkdf2-api
PSA API for PBKDF2-HMAC
2021-05-12 18:00:30 +02:00
David Horstmann
95d516f319 Remove MBEDTLS_SSL_MAX_CONTENT_LEN option
Signed-off-by: David Horstmann <david.horstmann@arm.com>
2021-05-10 17:02:48 +01:00
Manuel Pégourié-Gonnard
f9a68ad62a Fix typos
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-07 12:11:38 +02:00
Manuel Pégourié-Gonnard
dd57b2f240
Merge pull request #4445 from TRodziewicz/remove_deprecated_things_-_remainder
Remove deprecated functions and constants.
2021-05-07 10:05:30 +02:00
TRodziewicz
d9d035a5b5 Corrections of the migration guide from the code review.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-06 11:53:06 +02:00
TRodziewicz
c1c479fbe9 Fllow-up of the review: ChangeLog expansion, mmigration guides added and comments fixed
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-05-06 00:53:22 +02:00
Gilles Peskine
275b9b2ef4
Merge pull request #4402 from mpg/migration-guide-3.0
Migration guide for 3.0
2021-05-05 14:30:39 +02:00
Manuel Pégourié-Gonnard
143b1e387b Fix a number of typos
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>

Co-authored-by: Ronald Cron <ronald.cron@arm.com>
2021-05-05 09:47:47 +02:00
Ronald Cron
d5d04962ef Add change log and migration guide
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-05-04 15:59:10 +02:00
Manuel Pégourié-Gonnard
438ac27059 Quit using title case for entry titles
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 13:06:34 +02:00
Manuel Pégourié-Gonnard
72f762b1da Clarify 3.0-migration-guide.d/00README
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 11:36:40 +02:00
Manuel Pégourié-Gonnard
e756306dd6 Move some details from ChangeLog to migration guide
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 11:36:33 +02:00
Manuel Pégourié-Gonnard
57e93e5296 Clarify a sentence
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 11:35:08 +02:00
Manuel Pégourié-Gonnard
f5acfbac99 Improve description of migration guide entries
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 11:35:08 +02:00
Manuel Pégourié-Gonnard
2960b2e88c Fix a few typos
Co-authored-by: Gilles Peskine <gilles.peskine@arm.com>
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 11:35:08 +02:00
Manuel Pégourié-Gonnard
b2a1043a4c Add a directory for 3.0 migration guide entries
Similarly to ChangeLog.d, we want to avoid endless merge conflicts.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 11:35:08 +02:00
Manuel Pégourié-Gonnard
89d4ab0999 Add a "3.0 migration guide document"
For now the entries are in no particular order. Before the release we
should have a final pass over this document and order them from most
impactful to least impactful. We might even create sections, a table of
contents, etc.

In the meantime, each PR should add an entry about it changes.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-05-04 11:35:08 +02:00
Manuel Pégourié-Gonnard
421390f52f Fix driver interface for key derivation
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-04-30 12:38:12 +02:00
Dave Rodgman
12f93f4fc2
Merge pull request #4407 from ARMmbed/dev3_signoffs
Merge development_3.0 into development
2021-04-26 19:48:16 +01:00
Ronald Cron
b5939e814e
Merge pull request #4160 from stevew817/feature/driver_builtin_keys
Add implementation for MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS

Merging as it has been ready for four days now and I prefer not having to go through other rebases especially given the coming change of scope of development (3.0 rather than 2.2x).
2021-04-23 09:40:31 +02:00
Manuel Pégourié-Gonnard
351a2576f5 PSA PBKDF2: extend key derivation driver interface
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-04-20 13:11:17 +02:00
Tobias Nießen
835beffcf4
Fix typo in architecture docs
Signed-off-by: Tobias Nießen <tniessen@tnie.de>
2021-04-19 23:56:25 +02:00
Manuel Pégourié-Gonnard
16529bd439
Merge pull request #4344 from TRodziewicz/remove_deprecated_things_in_crypto_compat_h
Remove deprecated things from crypto_compat.h and dependent tests.
2021-04-19 10:55:21 +02:00
Steven Cooreman
31e27af0cc Reword the builtin key language on persistency declaration
Specifically allow the driver to override the persistency level of a
builtin key in cases where the driver is persistency-aware.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-04-16 11:25:18 +02:00
TRodziewicz
2a1a67300d Remove deprecated things from crypto_compat.h and dependent tests.
Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
2021-04-13 23:12:42 +02:00
Dave Rodgman
73e3e2cb1a Merge remote-tracking branch 'origin/development' into development_new
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>

Conflicts:
        include/mbedtls/check_config.h: nearby edits
	library/entropy.c: nearby edits
	programs/random/gen_random_havege.c: modification vs. removal
	programs/ssl/ssl_test_lib.h: nearby edits
	programs/test/cpp_dummy_build.cpp: nearby edits
	visualc/VS2010/mbedTLS.vcxproj: automatically generated file,
            regenerated with scripts/generate_visualc_files.pl
2021-04-07 16:31:09 +01:00
Chris Jones
6f554e388e Remove reference to include/mbedtls/*_internal.h files
Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-01 09:52:37 +01:00
Hanno Becker
7594c68049 Document status of MPS upstreaming
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-03-29 14:20:18 +01:00
Gilles Peskine
2c5d9e6a32 No configuration symbols for FFDH
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-09 21:40:41 +01:00
Gilles Peskine
7df7d1eb57 ECC: add rationale
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-09 21:40:29 +01:00
Gilles Peskine
c74712f12d Fix an example that didn't follow the given pattern
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-09 21:40:02 +01:00
Gilles Peskine
59c6347810 Remove the time stamp
Time stamps are useful when the document gets shared around, but they
tend to lead to merge conflicts.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-09 21:39:13 +01:00
Ronald Cron
d9763466b7 Expand and improve psa-crypto-implementation-structure.md
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:49:14 +01:00
Ronald Cron
31520b4b1c Fix psa-crypto-implementation-structure.md
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:38:50 +01:00
Ronald Cron
0dbbf1e27f psa: Add architecture document
Add architecture document explaining how this
PR aim to restructure the PSA implementation (only
part of it) and why.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:29:07 +01:00
Ronald Cron
ac80be111b
Merge pull request #3878 from gilles-peskine-arm/psa-builtin-keys-via-slot-number-spec
New entry point get_builtin_key for opaque drivers (PSA spec)
2021-01-29 10:43:15 +01:00
Ronald Cron
318515b384
Merge pull request #3984 from gabor-mezei-arm/3268_update_macros_for_ouput_buffer_size_renames
Rename existing support macros for output buffer sizes for PSA Crypto API 1.0.0
2021-01-29 09:31:59 +01:00
Ronald Cron
a120146afe
Merge pull request #3962 from gilles-peskine-arm/psa-storage-format-test-strategy
Keystore format stability test strategy
2021-01-25 16:44:23 +01:00
Gilles Peskine
055be83413 Fix typo
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-25 11:36:24 +01:00
gabor-mezei-arm
cbcec21684
Rename output buffer size macros
Rename existing support macros for output buffer sizes for PSA Crypto API 1.0.0

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2021-01-21 13:17:25 +01:00
Gilles Peskine
84ae1eefb4 Minor clarification
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-20 20:20:10 +01:00
Gilles Peskine
3d67365ef7 Add a key_buffer_length output to "get_builtin_key"
While builtin keys will often have a fixed-size context, this is not
necessarily the case, so the "get_builtin_key" entry point needs to
return the size of the actual key context.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-20 20:19:14 +01:00
Gilles Peskine
ff457506d3 Remind the reader of what is done about old formats
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-19 14:25:20 +01:00
Gilles Peskine
697ee190b5 Add a section about non-default lifetimes
Alternative locations should be covered. We don't yet support
alternative persistence levels.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-18 23:38:21 +01:00
Gilles Peskine
528144f523 Clarify the methods of key storage testing
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-18 23:36:18 +01:00
Gilles Peskine
cf62f10d3f Clarify interoperability non-requirement
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-05 11:49:18 +01:00
Gilles Peskine
739e08a68d Keystore format stability test strategy
Initial revision.

Save-compare-load approach: the test case data contains attributes of
the object under test and the expected file content. Create the
object, save it, check that the file has the expected content, load
the file and check that the new object has the expected attributes.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-14 18:51:47 +01:00
Ronald Cron
8f05aeb2e3
Merge pull request #3882 from gilles-peskine-arm/psa-random-driver-spec
PSA: Specification for random generation and entropy drivers
2020-12-11 14:07:35 +01:00
Gilles Peskine
348eeebb24 Clarify the intent of the KEEPALIVE flag
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-11 10:52:36 +01:00
Manuel Pégourié-Gonnard
a27a4e2f18
Merge pull request #3929 from gilles-peskine-arm/psa-driver-remove-old-accel
Remove old proposed accelerator interfaces
2020-12-10 11:31:47 +01:00
Gilles Peskine
24cebf6671 Add a section for transparent drivers
No strategy yet, just state some basic requirements.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-08 15:19:04 +01:00
Gilles Peskine
f0e2853d46 Minimal update to mention unified-interface opaque drivers
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-08 15:19:04 +01:00
Gilles Peskine
ae7772d0f3 Clarifications around reseed_entropy_size
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:48:39 +01:00
Gilles Peskine
43100e3fcb Add section on combining get_entropy with add_entropy
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:48:29 +01:00
Gilles Peskine
32e584c38a Copyediting and minor clarifications
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:48:29 +01:00
Gilles Peskine
3ff79066b1 Note an interrogation about integer value representation
Especially 0 values may need special treatment since they can't be
used as an array size.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:48:29 +01:00
Gilles Peskine
6a530e8d26 Random driver: make initial_entropy_size mandatory
If a random driver has a built-in entropy source and doesn't need an
external entropy source, make the driver author declare this
explicitly, rather than it being a less secure default.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:48:22 +01:00
Gilles Peskine
ee914f34fa Minor clarifications
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:48:14 +01:00
Gilles Peskine
609394c1cf Open question: can there be multiple RNG instances?
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:48:06 +01:00
Gilles Peskine
8d5092c11f get_random: no output on error
The get_random entry point was allowed to return partial data on both
PSA_SUCCESS and PSA_ERROR_INSUFFICIENT_ENTROPY, but there was no
meaningful difference between the two. Keep it simple: PSA_SUCCESS is
success but can be partial, and PSA_ERROR_INSUFFICIENT_ENTROPY is an
error with no output.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:56 +01:00
Gilles Peskine
1ef6ad48d1 Note that I'm not completly sure about the get_entropy flags
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:45 +01:00
Gilles Peskine
3eb65fbba6 Open question: should add_entropy take an estimated_entropy_bits parameter?
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:45 +01:00
Gilles Peskine
b89b4b9025 get_entropy: recommendations on conditioning and entropy estimates
Explicitly recommend that the driver accounts for environmental
conditions that can affect the amount of entropy.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:36 +01:00
Gilles Peskine
05ab2646a3 get_entropy: recommendations on the output_size
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:36 +01:00
Gilles Peskine
a14326f054 Make add_entropy optional
A random generation driver does not need to support entropy injection.
This will limit it to platforms where the RNG peripheral is the sole
entropy source and without an RNG seed saved into persistent storage.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:27 +01:00
Gilles Peskine
390c5a2c6f It is not meaningful for reseed_entropy_size to be 0
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:19 +01:00
Gilles Peskine
0e3b7ced4c Don't require a call to add_entropy when 0 bytes are needed
If an RNG peripheral includes an entropy source, it would presumably
declare "initial_entropy_size" and "reseed_entropy_size" to be 0. In
this case, don't require the core to call "add_entropy".

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:47:10 +01:00
Gilles Peskine
5263e1ecdd Transparent drivers can have get_entropy as well
The `get_entropy` entry point can be provided by multiple transparent
drivers, and the core will call all of them. But apart from that,
`get_entropy` doesn't involve an opaque key or a location, so it can
be in a transparent driver.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:46:58 +01:00
Gilles Peskine
e80978a260 Specification for random generation and entropy drivers
Transparent drivers may provide a DRBG interface through "add_entropy"
and "get_random" entry points. This interface may also be used with a
non-deterministic generator, for chips that include a TRNG.

Opaque driver may provide a "get_entropy" entry point.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:46:42 +01:00
Gilles Peskine
1fc4c8d11b Let get_builtin_key be called to retrieve the key's attributes
Allow the core to call the "get_builtin_key" entry point to retrieve
the attributes of a built-in key. This is useful to implement
psa_get_key_attributes(), and also when the key data buffer's size
depends on the key type and size.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 18:41:50 +01:00
Gilles Peskine
a6454d2820 Minor clarifications
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 17:01:52 +01:00
Gilles Peskine
48d71f2aa4 New entry point get_builtin_key for opaque drivers
Allow opaque drivers to expose keys that were not created through the
PSA API.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 17:01:37 +01:00
Gilles Peskine
51977355dc Remove the time stamp
Having a time stamp identifying each revision of the document is
useful, but it's also a pain because it creates a conflict whenever
there are multiple pending changes at the same time. The gain isn't
worth the pain, so I'm removing the time stamp.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-12-07 17:01:17 +01:00
Gilles Peskine
db6b03b4f2 Remove old-style accelerator and entropy driver interfaces
The driver interfaces described in crypto_accel_driver.h and
crypto_entropy_driver.h are no longer being worked on. We do not
intend to finish the design of these interfaces or to implement them
in Mbed TLS. They have been superseded by the unified driver
interface (docs/proposed/psa-driver-interface.md), which is being
actively worked on both to finalize the specification and to implement
it in Mbed TLS.

The partially implemented dynamic secure element interface is staying
for now.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-30 17:37:14 +01:00
Gilles Peskine
e533ff7bb7
Merge pull request #3695 from gilles-peskine-arm/psa-unified-driver-specs-20200918
PSA unified driver specification: key validation and transparent key import
2020-11-30 15:54:45 +01:00
Gilles Peskine
f0a9721c18 Use GitHub-compatible table formatting
Also fix a stray `.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-26 10:31:32 +01:00
Gilles Peskine
4228671d0f Copyediting
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-24 13:11:31 +01:00
Gilles Peskine
99e52f6313 Clarifications around key import
Rework the section describing key import, in particular to clarify key
size determination and checking. There is no intended semantic change.

Note an open question around support for implementation-specific
import formats.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-24 13:11:31 +01:00